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Level up Your Atmospheric Data

The Impact of Atmospheric Data on Precision Shooting

In precision shooting, understanding and accounting for atmospheric data is crucial for accuracy, especially at long distances.. Factors such as temperature, humidity, barometric pressure, and wind can significantly affect a bullet’s trajectory. Ignoring these elements can result in missed targets, even with an accurately-zeroed rifle.

Key Atmospheric Factors

1. Temperature: Affects the air density and, consequently, the drag on the bullet. Higher temperatures typically reduce air density, causing less drag and a flatter trajectory.

2. Humidity: Changes air density, though its effect is less significant than temperature. Higher humidity can slightly reduce air density.

3. Barometric Pressure: Directly impacts air density. Lower pressure (higher altitude typically) means less air resistance and a flatter trajectory.

4. Density Altitude: It indicates the air density compared to the standard atmosphere. It is calculated using the temperature, pressure, and humidity. 

5. Wind: The most unpredictable factor. Wind speed and direction can push a bullet off course, requiring precise adjustments. While wind is unpredictable, the patented Wind Dots in the TREMOR3 and TREMOR5 reticles allow for quick and easy adjustments in miles per hour or kilometers per hour. 

Tools for Measuring Atmospheric Data

To accurately measure and account for atmospheric conditions, shooters use various tools. One such advanced tool is the Horus Vision Weather Meter & Laser Range Finder Kit. This product combines a weather meter and a laser range finder, offering a comprehensive solution for shooters.

Horus Vision Weather Meter 

This dual-purpose device provides shooters with essential atmospheric data. Key features include:

– Weather Meter: Measures temperature, humidity, barometric pressure, and wind speed/direction, providing real-time data for ballistic calculations.

– Integration with Ballistic Apps: Syncs with the Horus Ballistics App via Bluetooth, allowing for seamless data transfer and on-the-fly adjustments.

– Large, easy to read display with a 20+ hour battery life.

While the Horus Ballistics App and HoVR™ Weather Meter integrate seamlessly, you can also utilize other weather instruments to capture this data and manually enter it into the Horus Ballistics App. 

How to Utilize Atmospheric Data in Shooting

1. Gather Data: Use the weather meter to collect atmospheric conditions at your shooting location.

2. Input Data: Enter the collected data into a ballistic calculator or app.

3. Adjust Your System: Based on the ballistic calculations, hold for wind and elevation if you are using a Horus reticle or similar. If you are not going to hold, dial to adjust your scope’s elevation and windage turrets

4. Shoot and Confirm: Fire a test shot and confirm your adjustments. Make further refinements as needed.


Incorporating atmospheric data into your shooting process can dramatically improve accuracy, particularly over long distances. Tools like the Horus Vision Weather Meter provide the necessary data to make informed adjustments, ensuring that every shot counts. By understanding and utilizing atmospheric conditions, you can elevate your precision shooting skills to the next level.